mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin SherginandFacebook Github Bot
94d49e544d
Summary: We are moving to more stable APIs removing all mentiones of the effort name from the codebase. Reviewed By: mdvacca Differential Revision: D12912894 fbshipit-source-id: 4a0c6b9e7454b8b14e62d419e9e9311dc0c56e7a
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
/**
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <folly/Optional.h>
|
|
#include <react/components/text/ParagraphProps.h>
|
|
#include <react/components/text/TextShadowNode.h>
|
|
#include <react/components/view/ConcreteViewShadowNode.h>
|
|
#include <react/core/ConcreteShadowNode.h>
|
|
#include <react/core/LayoutContext.h>
|
|
#include <react/core/ShadowNode.h>
|
|
#include <react/textlayoutmanager/TextLayoutManager.h>
|
|
|
|
namespace facebook {
|
|
namespace react {
|
|
|
|
extern const char ParagraphComponentName[];
|
|
|
|
using ParagraphEventEmitter = ViewEventEmitter;
|
|
|
|
/*
|
|
* `ShadowNode` for <Paragraph> component, represents <View>-like component
|
|
* containing and displaying text. Text content is represented as nested <Text>
|
|
* and <RawText> components.
|
|
*/
|
|
class ParagraphShadowNode : public ConcreteViewShadowNode<
|
|
ParagraphComponentName,
|
|
ParagraphProps,
|
|
ParagraphEventEmitter>,
|
|
public BaseTextShadowNode {
|
|
public:
|
|
using ConcreteViewShadowNode::ConcreteViewShadowNode;
|
|
|
|
/*
|
|
* Returns a `AttributedString` which represents text content of the node.
|
|
*/
|
|
AttributedString getAttributedString() const;
|
|
|
|
/*
|
|
* Associates a shared TextLayoutManager with the node.
|
|
* `ParagraphShadowNode` uses the manager to measure text content
|
|
* and construct `ParagraphLocalData` objects.
|
|
*/
|
|
void setTextLayoutManager(SharedTextLayoutManager textLayoutManager);
|
|
|
|
#pragma mark - LayoutableShadowNode
|
|
|
|
void layout(LayoutContext layoutContext) override;
|
|
Size measure(LayoutConstraints layoutConstraints) const override;
|
|
|
|
private:
|
|
/*
|
|
* Creates a `LocalData` object (with `AttributedText` and
|
|
* `TextLayoutManager`) if needed.
|
|
*/
|
|
void updateLocalData();
|
|
|
|
SharedTextLayoutManager textLayoutManager_;
|
|
|
|
/*
|
|
* Cached attributed string that represents the content of the subtree started
|
|
* from the node.
|
|
*/
|
|
mutable folly::Optional<AttributedString> cachedAttributedString_{};
|
|
};
|
|
|
|
} // namespace react
|
|
} // namespace facebook
|